Improvement in steam-generators



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Letters .Patent No. 93,745, dated August 17, 1869.

IMPROVEMENT IN STEAM-GENERATORS.

The Schedule referred to in these Letter! Patent and making part of the same.

To all whom it may concern:

Be it known that we, J ONATHAN QUIPP and ROBERT LAW, of Buialo, in the county of Erie, and State of New York, have invented a new and useful Improve-v ment in Steam-Generators; and we do hereby dec-lare that the following is a full, clear, and exact descrip' tion thereof, which will enable others skilled in the art to make and use the same, reference being had to the' accompanying drawings, forming part of this specification, in Which- Figure 1 represents a front end view, partly broken out.

Figure 2 represents a side View, also partly broken.

Similar letters of reference indicate coiresponding parts.

We use two or more boilers. The one, A, placed over the f1re-boX,we call the primary boiler, and it is an 0rdinary lue-boiler; the two upper boilers, C D, we call the secondary boilers, to distinguish them.

There are also line-boilers with double ends, as shown, where part of the outside end is left off on the left hand,l in both figures.

The iiues inthe secondary boilers run through from one inside end to the other, and the outer end or vtlap covers the entire end of the boiler, leaving a space between it andthe fines, thus leaving the lues and spaces at the ends a free communication.

`We generate steam in the primary boiler to the desired pressure, then open the cock in the pipe E, connecting the three boilers, when the steam rushes into the secondary boilers, iilling the i'lnes and end spaces with steam at a high pressure.

The tlues in the secondary boiler or boilers are much smaller, and put Very close together, sc as to cut up the water contained in them as much as possible.

`When the steam is irst let on the cold boilers, it condcnses very rapidly, but after steam is up, it con; denses very slowly.

.The pipes connecting the boilers 'are placed so that the condensed steam can return again to the primary boiler, through the same pipe that admits the steam. As the condensed steam returns again to the primary,- there can be but little loss of water in that boiler; still there will besome, and to replenish, we open the cock in the' pipe F, on the iight, connecting the primary, A, with one of the secondary boilers. This pipe goes through both heads-to the water.

The secondary boilers are supplied with pumps in the 'usual way. y

After the steam is up, the small amount of fuel reuired to keep it up, exhibits an immense economy over the present mode of generating steam, as we have demonstrated by experiment. l

There is no steam drawn away tiointhe first boiler, nor any cold water thrown in, so we only have to keep up the steam in that boiler. But the greatest point gained, is the tremendous ebullition that is obtained in 'every part of the boilers.

WVhen a tire is built under an ordinary boiler, it is intensely hot just over the fire, but as the boiler extends beyond t-he tire, it gradually grows cooler, until finally, one can bear a hand on it. There is a. fearful loss somewhere. By this method, the steam or heat is forced into every interstice, and held there, thus getting and using the greatest possible heating-surface. v Another point is, using so little water inthe primary boiler, there can be but little deposit or sediment.

Then, again, the fines in tlie secondary boilers, using nothing but steam, must always be very clean, and they are very safe from explosions, as the water in the plimary boiler cannotvrery well get below the fines, and the flues in the secondary boilers cannot be made hot enough to be dangerous.

Having thus described our invention, Vhat we claim as new, and desire to secure by lLetters Patent, is

1. The improved mode herein described, of generating steam by a system of primary and secondary' boilers, arranged'to concentrate the heat of the iire upon the primary boilers, and to discharge the steam generated therein into the heating-space of the secondary boilers, for generating steam therein for use, substantially as specified.

2. The arrangement of the pipes E and F, with relation to the primary and secondary boilers, as herein shown and described.

JONATHAN QUIPP.

Witnesses: ROBERT LAW.

HENRY C. IIR-INE,

Dems MGNAMABA. 

